Plumbing
The membranes and high-pressure pumps used on the RO Systems require a continuous and non-turbulent flow of water to the unit. Minimum feed pressure is 20 psi. (See tables on RO Systems page to determine your systems required flow). The tubing or piping used for discharge of the concentrate should be run to an open drain in a free and unrestricted manner.
(Any restrictions or blockage in the drain can cause backpressure, which wil increase the system's operating pressure. This can result in damage to system components.)
Temperature of the feed water must not exceed 113°F (45°C).
Electrical
All motors on the RO-150 through the RO-1200 are single-phase, open drip type. The standard motors are 60 and 50 Hz. The voltage will be either 115VAC or 230VAC for the 60 Hz motors, or 220VAC for the 50 Hz motors. The motors on the RO-1500 through the RO-8000 are pump/motor combinations. They are available single-phase: 115VAC or 230VAC at 60 Hz or 220VAC at 50 Hz. The three phases are available in 230-460VAC at 60 Hz or 220-380VAC at 50 Hz. Ensure that the electrical circuit supplying the system is compatible with the requirements of the specific RO model. (Note: We recommend that a licenced electrician install your unit in accordance with local and national electrical codes.) Each RO system, excluding the RO-4500, the RO-8000 and all three-phase units, is equipped with a 10 foot electrical cord. Typical units do not require any additional wiring for installation. 50 Hz models may require replacement of the standard plug to fit certain receptacles.
Pre-Filtration
RO systems are supplied with a particulate pre-filter that filters out most particles over 5 microns in size before the water is pumped through the reverse osmosis membrane. Change the cartridge at least every month or whenever there is a pressure difference of 10% or more between the pressure readings before and after the filter, if pressure gauges are installed. (Caution: If the pre-filter becomes clogged and the water flow to the pump is reduced or interrupted, cavitation will occur. This will damage the pump.)
Pump
The pumps supplied with RO-50 to RO-1200 systems are positive displacement, rotary vane type. The pumps supplied with the RO-1500 to RO-8000 are multi-stage, centrifugal pumps. Follow these guidelines for proper operation of both pumps: (1) The pump must NEVER be run dry. Operating the pump without sufficient feed water will damage the pump. (2) Always feed the pump with filtered water. The rotary vane type pump is especially susceptible to damage from sediment and debris.
Feed Water Requirements
Nothing has a greater effect on a Reverse Osmosis System than the feed water quality. For lasting performance it is important to supply the reverse osmosis system with the feed water quality shown below. It is also important to feed the system the required amount of feed water shown in the table on the RO-150 through RO-8000 page.
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Applications
Automotive
